* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #f4f4f9;
  color: #333;
  text-align: center;
  padding: 0 1rem;
}

.header {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.header-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  filter: brightness(70%);
}

.welcome {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #fff;
  font-size: 2rem;
  font-weight: bold;
  text-shadow: 0 2px 5px rgba(0, 0, 0, 0.5);
}

.container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2rem;
  max-width: 400px;
  margin-inline: auto;
}

.btn {
  display: block;
  padding: 1rem;
  background-color: #4f46e5;
  color: #fff;
  text-decoration: none;
  border-radius: 8px;
  font-weight: bold;
  transition: background-color 0.3s;
}

.btn:hover {
  background-color: #3730a3;
}

.logout {
  background-color: #dc2626;
}

.logout:hover {
  background-color: #991b1b;
}